Beam recovery processing method, beam recovery method, and device, system and medium

ABSTRACT

Provided are a beam recovery processing method, a beam recovery method, a base station and a terminal. The beam recovery processing method includes: determining, by a transmitting end, a configuration information set for instructing a receiving end to perform a beam recovery; and transmitting, by the transmitting end, the configuration information set to the receiving end.

CROSS-REFERENCES TO RELATED APPLICATIONS

This is a continuation of U.S. patent application Ser. No. 16/497,212,filed on Sep. 24, 2019, which is a National Stage Application, filedunder 35 U.S.C. 371, of International Patent Application No.PCT/CN2018/080344, filed on Mar. 23, 2018, which claims priority to aChinese patent application No. 201710184664.1 filed on Mar. 24, 2017,disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communications and, inparticular, to a beam recovery processing method, a beam recoverymethod, a communication device, a communication system and a computerstorage medium.

BACKGROUND

In a wireless communication system in the existing art, a transmittingend and a receiving end generally use multiple antennas for transmissionand reception to acquire a higher rate. One principle of a multi-antennatechnology is to use some features of a channel for beamforming to formthe transmission and reception that match the features of the channel.The radiation direction of a signal is very specific, which caneffectively improve system performance and obtain significantimprovement of performance without increasing bandwidth and power. Themulti-antenna technology is a very promising technology and is widelyapplied in current systems. A beamforming technology is shown in FIG. 1. FIG. 1 is a schematic diagram of the beamforming technology in theexisting art. The transmitting end transmits a directional beam throughthe beamforming and the receiving end receives the directional beam.

The beamforming is implemented through precoding, which may form beamsin a feature space and a physical space. The precoding may includebaseband precoding and radio frequency (RF) precoding, which correspondto a baseband beam and an RF beam respectively. Baseband processingmainly acts on an RF path and RF processing mainly acts on an element ofthe RF path. The baseband precoding is performed on a baseband, and theRF precoding is performed on an RF. A beam mentioned in the presentdisclosure may be a baseband beam, an RF beam or a combination thereof.

When large-scale antennas are deployed on a base station side,generally, considering that the channel has a relatively high dimension,and the RF precoding and the baseband precoding coexist, measurement,feedback and transmission in a multiple-input-multiple-output (MIMO)system are generally performed in the following manner:

-   -   beam information measurement and feedback (beam training).

In step 1, a base station transmits beam reference signals in differentdirections and notifies the receiving end of configuration information.

In step 2, a terminal measures the received qualities of these beamreference signals and selects reference signals of better qualities fromthese beam reference signals to feed the reference signals of betterqualities back to the base station.

In step 3, the base station performs data transmission through theprecoding corresponding to the reference signals of better qualities.

Here, the base station continues to transmit narrower beams within thecoverage range of the selected beams, and the terminal selects from thenarrower beams to refine the beams. The base station obtains moreaccurate beam direction information through the feedback of theterminal. The steps for the beam training may be performed multipletimes.

Alternatively, the base station may further transmit some referencesignals based on the beams reported by the terminal for measuring theinterference between beams or an optimal weighted combination parameterbetween beams. The weighting is generally performed on the baseband toobtain more combination gains, which may practically be considered as amore accurate beam (in the feature space).

After acquiring beam selection information, the base station may performdownlink transmission by using the beams. If channel state information(CSI) may be further obtained, transmission performance may be moreeffectively improved. Both the CSI and beam information may be acquiredby measuring the measurement reference signals.

After acquiring the beam information and the CSI, the base station mayperform downlink transmission with the beam information and the CSI.With increasingly higher operating frequencies, beams are used fortransmission of a control channel, a data channel and the like toenhance coverage. Beam transmission has high transmission efficiency andpoor robustness. As the beams are narrow, the quality of a serving beamoften decreases when the terminal moves or rotates or a propagation pathis blocked or obstructed, so that normal communication cannot beperformed. However, after the quality of the serving beam decreases, thebeams are not switched in time for the communication between theterminal and the base station, resulting in a poor communication qualityand even interrupted communication and the like.

SUMMARY

Embodiments of the present disclosure provides a beam recoveryprocessing method, a beam recovery method, a base station and aterminal, to solve at least the problem in the existing art of acommunication quality decline or a poor communication quality due to abeam quality decline.

An embodiment of the present disclosure provides a beam recoveryprocessing method. The method includes steps described below.

A transmitting end determines a configuration information set forinstructing a receiving end to perform a beam recovery. Theconfiguration information set includes at least one of: a firstconfiguration information set, a second configuration information set, athird configuration information set or a fourth configurationinformation set. The first configuration information set is used forinstructing the receiving end to perform beam quality monitoringaccording to the first configuration information set. The secondconfiguration information set is used for instructing the receiving endto perform a beam selection according to the second configurationinformation set. The third configuration information set is used forinstructing the receiving end to report beam recovery information to thetransmitting end according to the third configuration information set,where the beam recovery information includes beam indication informationand/or receiving end indication information. The fourth configurationinformation set is used for instructing the receiving end to determinethe beam selection and/or determine whether to report the beam recoveryinformation according to the fourth configuration information set.

The transmitting end transmits the configuration information set to thereceiving end.

Another embodiment of the present disclosure provides a beam recoverymethod. The method includes steps described below. A receiving endreceives a configuration information set for instructing the receivingend to perform a beam recovery and transmitted by a transmitting end.The receiving end performs, according to the configuration informationset, at least one of operations described below. The receiving enddetermines first configuration information used for beam qualitymonitoring according to the configuration information set, and performsthe beam quality monitoring according to the first configurationinformation. The receiving end determines fourth configurationinformation for determining to perform a beam selection and/or reportbeam recovery information according to the configuration informationset, and determines the beam selection and/or determines whether toreport the beam recovery information according to the fourthconfiguration information.

Another embodiment of the present disclosure further provides a basestation including a processor and a communication apparatus. Theprocessor is configured to determine a configuration information set forinstructing a terminal to perform a beam recovery. The configurationinformation set includes at least one of: a first configurationinformation set, a second configuration information set, a thirdconfiguration information set or a fourth configuration information set.The first configuration information set is used for instructing theterminal to perform beam quality monitoring according to the firstconfiguration information set. The second configuration information setis used for instructing the terminal to perform a beam selectionaccording to the second configuration information set. The thirdconfiguration information set is used for instructing the terminal toreport beam recovery information to the base station according to thethird configuration information set, where the beam recovery informationincludes beam indication information and/or terminal indicationinformation. The fourth configuration information set is used forinstructing the terminal to determine the beam selection and/ordetermine whether to report the beam recovery information according tothe fourth configuration information set.

The communication apparatus is configured to transmit the configurationinformation set to the terminal.

Another embodiment of the present invention further provides a terminalincluding a communication apparatus and a processor.

The communication apparatus is configured to receive a configurationinformation set for instructing the terminal to perform a beam recoveryand transmitted by a base station.

The processor is configured to perform, according to the configurationinformation set, at least one of operations described below. Theprocessor determines first configuration information used for beamquality monitoring according to the configuration information set, andthe terminal performs the beam quality monitoring according to the firstconfiguration information. The processor determines fourth configurationinformation used for determining to perform a beam selection and/orreport beam recovery information according to the configurationinformation set, and the terminal determines the beam selection and/ordetermines whether to report the beam recovery information according tothe fourth configuration information.

An embodiment of the present disclosure further provides a communicationsystem including a base station and a terminal.

The base station determines a configuration information set forinstructing the terminal to perform a beam recovery. The configurationinformation set includes at least one of: a first configurationinformation set, a second configuration information set, a thirdconfiguration information set or a fourth configuration information set.The first configuration information set is used for instructing theterminal to perform beam quality monitoring according to the firstconfiguration information set. The second configuration information setis used for instructing the terminal to perform a beam selectionaccording to the second configuration information set. The thirdconfiguration information set is used for instructing the terminal toreport beam recovery information to the base station according to thethird configuration information set, where the beam recovery informationincludes beam indication information and/or terminal indicationinformation. The fourth configuration information set is used forinstructing the terminal to determine the beam selection and/ordetermine whether to report the beam recovery information according tothe fourth configuration information set.

The base station transmits the configuration information set to theterminal.

An embodiment of the present disclosure provides a computer storagemedium, which is configured to store computer-executable instructionswhich, when executed, implement the beam recovery processing method orthe beam recovery method in the embodiments described above.

An embodiment of the present disclosure provides a communication deviceincluding a memory and a processor. The memory is configured to storecomputer-executable instructions. The processor is connected to thememory and configured to execute the computer-executable instructions toimplement the beam recovery processing method or the beam recoverymethod in the embodiments described above.

In the technical solutions of the present disclosure, the transmittingend determines the configuration information set for instructing thereceiving end to perform the beam recovery, and transmits theconfiguration information set to the receiving end.

When the technical solutions are used, at least one of bothcommunication parties may perform beam monitoring according to theconfiguration information set of the beam recovery. In this case, once aquality of a serving beam is found to decrease or decrease too much toaffect a communication quality, the beam selection may be performedagain according to configuration information, the serving beam isquickly switched, and a better beam is found to perform communicationbetween the communication parties so as to avoid an inability to find abeam quality decline or select an alternative beam capable of ensuringthe communication quality after the quality of the current serving beamdecreases due to mobility of the terminal or a change of a channelstatus, improve the communication quality and system performance, solvesthe problem of a poor communication quality due to the beam qualitydecline and the problem of affected transmission performance because abase station has no good mechanism to quickly find a severe beam qualitydecline and find a more suitable new beam when the beam qualitydecreases.

BRIEF DESCRIPTION OF DRAWINGS

The drawings described herein are used to provide a furtherunderstanding of the present disclosure, and form a part of the presentapplication. The exemplary embodiments and descriptions thereof in thepresent disclosure are used to explain the present disclosure and do notlimit the present disclosure in any improper way. In the drawings:

FIG. 1 is a schematic diagram of a beamforming technology in theexisting art;

FIG. 2 is a flowchart of a beam recovery processing method according toan embodiment of the present disclosure;

FIG. 3 is a structural diagram of hardware of a base station accordingto an embodiment of the present disclosure; and

FIG. 4 is a structural diagram of hardware of a terminal according to anembodiment of the present disclosure.

DETAILED DESCRIPTION

Embodiments of the present application provide a mobile communicationnetwork (which includes, but is not limited to, a 5G mobilecommunication network). A network architecture of the network mayinclude a network side device (such as a base station) and a terminal.An information transmission method executable on the preceding networkarchitecture is provided in this embodiment. It is to be noted that anexecution environment of the information transmission method provided bythe embodiments of the present application is not limited to thepreceding network architecture.

In the present application, a transmitting end may be the base stationand a receiving end may be a terminal device, but it is not limitedthereto.

Since a beam is required for transmission of a control channel, if thebase station cannot quickly learn the situation once the beam fails, acontrol signaling cannot be transmitted, and uplink and downlinktransmissions cannot be initiated, leading to a paralyzed link. On theone hand, the terminal might not be aware that a downlink link isbroken. On the other hand, even if the terminal finds no response tosome uplink requests and is aware that there is something wrong with thelink, the terminal can only re-initiate a access process, which wastes alot of system resources and results in poor user experience. Forexample, when a quality of the beam severely decreases, the base stationhas no good mechanism to quickly find a problem of the beam and find amore suitable beam. The base station can quickly find the problem of thebeam at the cost of frequent transmissions of measurement referencesignals and frequent and regular reporting of beam information. Thiswill impose a huge overhead pressure to both downlink and uplinktransmissions, decrease system performance and affect forwardcompatibility. For example, when the quality of the beam severelydecreases, the base station has no good mechanism to quickly find theproblem of the beam and find the more suitable beam. There is noeffective solution at present. In view of this, in the technicalsolutions provided by the embodiments of the present disclosure, thetransmitting end determines a configuration information set forinstructing the receiving end to perform a beam recovery, and thetransmitting end transmits the configuration information set to thereceiving end. In this way, if the quality of the beam decreases, beamsmay be quickly selected and switched according to configurationinformation, thereby ensuring a communication quality. A detaileddescription is further provided below in conjunction with specificembodiments. However, it is to be noted that the scope of the presentdisclosure is defined by the claims rather than the embodiments whichare merely used to explain the claims. An embodiment provides a beamrecovery processing method executed on the network architecturedescribed above. FIG. 2 is a flowchart of a beam recovery processingmethod according to an embodiment of the present disclosure. As shown inFIG. 2 , the method includes steps described below.

In step S202, a transmitting end determines a configuration informationset for instructing a receiving end to perform a beam recovery.

In step S204, the transmitting end transmits the configurationinformation set to the receiving end. In the preceding steps, thetransmitting end determines the configuration information set forinstructing the receiving end to perform the beam recovery, andtransmits the configuration information set to the receiving end. Whenthe preceding technical solution is used, a base station may find aproblem of a beam more quickly and find a better beam, improving systemperformance and solving the problem in the existing art of affectedtransmission performance because the base station has no good mechanismto quickly find a severe beam quality decline and find a more suitablenew beam when a quality of the beam severely decreases.

Optionally, the configuration information set includes at least one of:a first configuration information set, a second configurationinformation set, a third configuration information set or a fourthconfiguration information set. The first configuration information setis used for instructing the receiving end to perform beam qualitymonitoring according to the first configuration information set. Thesecond configuration information set is used for instructing thereceiving end to perform a beam selection according to the secondconfiguration information set. The third configuration information setis used for instructing the receiving end to report beam recoveryinformation to the transmitting end according to the third configurationinformation set, where the beam recovery information includes beamindication information and/or receiving end indication information. Thefourth configuration information set is used for instructing thereceiving end to determine the beam selection and/or determine whetherto report the beam recovery information according to the fourthconfiguration information set.

It should be added that the beam indication information refers toinformation for identifying a beam, that is, after selecting a new beam,the receiving end transmits the beam indication information of the newbeam to the transmitting end. The receiving end indication informationrefers to information for identifying the receiving end and is used forassisting the transmitting end in identifying the receiving end.

Optionally, the preceding steps may, but may not necessarily, beexecuted by the base station.

Optionally, the first configuration information set includesconfiguration information of a first reference pilot resource set usedfor the beam quality monitoring.

Optionally, the second configuration information set includesconfiguration information of a second reference pilot resource set usedfor the beam selection.

Optionally, the first reference pilot resource set is a subset of M1sets of reference pilot resources, and the second reference pilotresource set is a subset of N1 sets of reference pilot resources, whereM1 is less than or equal to N1, and M1 and N1 are both positiveintegers.

Optionally, the M1 sets of reference pilot resources are a subset of theN1 sets of reference pilot resources.

Optionally, the first reference pilot resource set includes M2 types ofreference pilot resources, and the second reference pilot resource setincludes N2 types of reference pilot resources, where M2 is less than orequal to N2, and M2 and N2 are both positive integers.

Optionally, the M2 types of reference pilot resources are a subset ofthe N2 types of reference pilot resources.

Optionally, candidate resource types of the first reference pilotresource set constitute a type set X1, and candidate resource types ofthe second reference pilot resource set constitute a type set X2, whereX1 is a subset of X2.

Optionally, a type of the reference pilot resource includes at least oneof: a channel state information reference signal (CSI-RS), a physicaldownlink control channel (PDCCH) demodulation reference signal (DMRS) ora synchronization signal.

Optionally, the step in which the transmitting end determines theconfiguration information set for instructing the receiving end toperform the beam recovery includes that the transmitting end configuresat least one of the following information for the receiving endseparately for different radio resource control (RRC) state sets: thefirst reference pilot resource set and/or a subset of the firstreference pilot resource set; or the second reference pilot resource setand/or a subset of the second reference pilot resource set.

Optionally, the step in which the transmitting end determines theconfiguration information set for instructing the receiving end toperform the beam recovery includes that the transmitting end configuresmultiple beam recovery modes, and configures at least one of thefollowing information separately for different beam recovery modes: thefirst reference pilot resource set and/or the subset of the firstreference pilot resource set; or the second reference pilot resource setand/or the subset of the second reference pilot resource set.

Optionally, the step in which the transmitting end determines theconfiguration information set for instructing the receiving end toperform the beam recovery includes that the transmitting end configuresmultiple control channels, and configures at least one of the followinginformation separately for different control channels: the firstreference pilot resource set and/or the subset of the first referencepilot resource set; or the second reference pilot resource set and/orthe subset of the second reference pilot resource set.

Optionally, the fourth configuration information set includesconfiguration information of a first set of preset conditions used fordetermining the beam selection and/or determining whether to report thebeam recovery information, where a preset condition in the first set ofpreset conditions is used by the receiving end to perform the beamquality monitoring.

Optionally, the preset condition in the first set of preset conditionsincludes a quality threshold and/or a time window, where within the timewindow, the receiving end performs beam monitoring and determineswhether a beam quality is lower than the quality threshold.

Optionally, the first set of preset conditions is configured in at leastone of the following manners: the transmitting end independentlyconfigures the first set of preset conditions and/or a first subset ofpreset conditions for an individual first reference pilot resource setsand/or subset of the first reference pilot resource set used for thebeam quality monitoring.

Optionally, the fourth configuration information set includesconfiguration information of a second set of preset conditions fordetermining the beam selection, where a preset condition in the secondset of preset conditions is used by the receiving end to perform thebeam selection.

Optionally, the preset condition in the second set of preset conditionsincludes the quality threshold and/or the time window, where within thetime window, the receiving end performs the beam monitoring anddetermines whether the beam quality is lower than the quality threshold.

Optionally, the second set of preset conditions is configured in thefollowing manner: the transmitting end independently configures thesecond set of preset conditions and/or a second subset of presetconditions for an individual second reference pilot resource sets and/orsubset of the second reference pilot resource set used for the beamselection.

Optionally, a set of preset conditions is configured in at least one ofmanners described below. The transmitting end configures multiplecontrol channels, and independently configures the first set of presetconditions and/or the first subset of preset conditions and/or thesecond set of preset conditions and/or the second subset of presetconditions for individual control channel. The transmitting endindependently configures the first set of preset conditions and/or thefirst subset of preset conditions and/or the second set of presetconditions and/or the second subset of preset conditions for individualRRC state set. The transmitting end independently configures the firstset of preset conditions and/or the first subset of preset conditionsand/or the second set of preset conditions and/or the second subset ofpreset conditions for individual beam reporting manner. The transmittingend independently configures the first set of preset conditions and/orthe first subset of preset conditions and/or the second set of presetconditions and/or the second subset of preset conditions for individualbeam recovery mode.

Optionally, the third configuration information set includes atransmission resource configuration information set used for reportingthe beam recovery information. A transmission resource in thetransmission resource configuration information set includes at leastone of: an uplink transmission antenna resource, an uplink transmissionbeam resource, an uplink time domain resource, an uplink frequencydomain resource, an uplink code domain resource or an uplink powerresource.

Optionally, third configuration information includes a transmissionmanner configuration information set used for reporting the beamrecovery information.

Optionally, the third configuration information includes indicationinformation for determining a priority of reporting the beam recoveryinformation. _(s)

Optionally, the third configuration information includes indicationinformation of reporting content of the beam recovery information.

Optionally, the third configuration information set is configured in atleast one of manners described below. The transmitting end independentlyconfigures the third configuration information set and/or a subset ofthe third configuration information set for an individual firstreference pilot resource set and/or subset of the first reference pilotresource set used for the beam selection. The transmitting endindependently configures the third configuration information set and/orthe subset of the third configuration information set for an individualfirst reference pilot resource set and/or subset of the first referencepilot resource set used for the beam selection. The transmitting endindependently configures the third configuration information set and/orthe subset of the third configuration information set for an individualfirst set of preset conditions and/or first subset of preset conditionsused for the beam quality monitoring. The transmitting end independentlyconfigures the third configuration information set and/or the subset ofthe third configuration information set for an individual second set ofpreset conditions and/or second subset of preset conditions used for thebeam selection. The transmitting end independently configures the thirdconfiguration information set and/or the subset of the thirdconfiguration information set for an individual RRC state set. Thetransmitting end independently configures the third configurationinformation set and/or the subset of the third configuration informationset for an individual beam recovery mode. The transmitting endindependently configures the third configuration information set and/orthe subset of the third configuration information set for an individualcontrol channel.

Another embodiment of the present disclosure provides a beam recoverymethod. The method includes steps described below. A receiving endreceives a configuration information set for instructing the receivingend to perform a beam recovery and transmitted by a transmitting end.The receiving end performs, according to the configuration informationset, at least one of operations described below: the receiving enddetermines first configuration information used for beam qualitymonitoring according to the configuration information set, and performsthe beam quality monitoring according to the first configurationinformation; the receiving end determines fourth configurationinformation for determining a beam selection and/or determining whetherto report beam recovery information according to the configurationinformation set, and determines the beam selection and/or determineswhether to report the beam recovery information according to the fourthconfiguration information.

Optionally, the receiving end determines second configurationinformation used for the beam selection according to the configurationinformation set; when a new beam needs to be selected, the receiving endperforms the beam selection according to the second configurationinformation.

Optionally, the receiving end determines third configuration informationused for reporting the beam recovery information according to theconfiguration information set; when the beam recovery information needsto be reported, the receiving end reports the beam recovery informationaccording to the third configuration information.

Optionally, the beam recovery information includes beam indicationinformation and/or receiving end indication information.

Optionally, the receiving end determines content of the beam recoveryinformation according to at least one of: a configuration signaling ofthe transmitting end; an RRC state; a configuration of a reportingmanner for the beam recovery information; a beam recovery mode; aconfiguration of a second reference pilot resource set; a configurationof a first reference pilot resource set; a transmission configuration ofa control channel; a measurement result of beam monitoring; a quality ofa selected beam; a system duplex manner; or a configuration of an uplinkcontrol channel.

Optionally, the first configuration information includes configurationinformation of the first reference pilot resource set used for the beamquality monitoring.

Optionally, the receiving end determines the configuration informationof the first reference pilot resource set according to at least one of:the configuration signaling of the transmitting end; the RRC state; theconfiguration of the reporting manner for the beam recovery information;the beam recovery mode; the configuration of the second reference pilotresource set; or the transmission configuration of the control channel.

Optionally, the second configuration information includes configurationinformation of the second reference pilot resource set used for the beamselection.

Optionally, the receiving end determines the configuration informationof the second reference pilot resource set according to at least one of:the configuration signaling of the transmitting end; the RRC state; theconfiguration of the reporting manner for the beam recovery information;the beam recovery mode; the configuration of the first reference pilotresource set; the transmission configuration of the control channel; ameasurement result of the beam quality monitoring; or a configuration ofa first set of preset conditions.

Optionally, the fourth configuration information includes configurationinformation of the first set of preset conditions used for the beamselection and/or reporting the beam recovery information, where a presetcondition in the first set of preset conditions is used by the receivingend to perform the beam quality monitoring.

Optionally, the first set of preset conditions includes a qualitythreshold, where the quality threshold is used for determining toinitiate the beam selection and/or beam reporting.

Optionally, the first set of preset conditions includes a time window,where the time window is used for a transmit beam quality detection ortransmit and receive a beam pair link (BPL) quality detection.

Optionally, the fourth configuration information set includesconfiguration information of a second set of preset conditions used forthe beam selection, where a preset condition in the second set of presetconditions is used for instructing the receiving end to perform the beamselection.

Optionally, the fourth configuration information set includesconfiguration information of a second set of preset conditions used forthe beam selection, where a preset condition in the second set of presetconditions is used for instructing the receiving end to perform the beamselection.

Optionally, the second set of preset conditions includes the qualitythreshold, where the receiving end determines whether to report the beamrecovery information according to the quality threshold.

Optionally, the second set of preset conditions includes the timewindow, where the time window is used for the transmit beam qualitydetection or the BPL quality detection.

Optionally, the receiving end determines the fourth configurationinformation according to at least one of: the configuration signaling ofthe transmitting end; the RRC state; the configuration of the reportingmanner for the beam recovery information; the beam recovery mode; theconfiguration of the second reference pilot resource set and/or a secondreference pilot resource subset; the configuration of the firstreference pilot resource set and/or a subset of the first referencepilot resource set; the transmission configuration of the controlchannel; or a receiving configuration of a terminal.

Optionally, a third configuration information set includes at least oneof: a transmission resource configuration used for reporting the beamrecovery information, a transmission manner configuration used forreporting the beam recovery information, an information contentconfiguration used for reporting the beam recovery information or apriority configuration used for reporting the beam recovery information.

Optionally, the receiving end determines the third configurationinformation according to at least one of: the configuration signaling ofthe transmitting end; the RRC state; the beam recovery mode; theconfiguration of the second reference pilot resource set and/or a subsetof the second reference pilot resource set; the configuration of thefirst reference pilot resource set and/or the subset of the firstreference pilot resource set; the transmission configuration of thecontrol channel; the fourth configuration information, a beam qualitymonitoring result; the quality of the selected beam; system duplexinformation; or the configuration of the uplink control channel.

Optionally, the receiving end determines the second reference pilotresource set according to the beam quality monitoring result.

Optionally, the receiving end determines a reporting resource and/or thereporting manner and/or reporting content of the beam recoveryinformation according to at least one of: a beam monitoring result; abeam selection result; the RRC state; a configuration of the beamrecovery mode; the system duplex manner; a configuration of the controlchannel; or the configuration of the second reference pilot resourceset.

The present disclosure will be described below in detail in conjunctionwith preferred embodiments of the present disclosure.

Before the preferred embodiments of the present disclosure aredescribed, some features of the technical solutions involved in thepreferred embodiments of the present disclosure are listed.

1. A first reference pilot resource set used for beam monitoring isrelated. Multiple variable and/or configurable types of RSs may besupported. A first reference pilot resource may be determined withreference to some other parameters, such as an RRC state.

2. A second reference pilot resource set used for beam selection isrelated. Multiple variable and/or configurable types of RSs may besupported. A second reference pilot resource may be determined withreference to some other parameters, such as the RRC state. The secondreference pilot resource set is a subset of the first reference pilotresource set. The second reference pilot resource may be selected basedon a beam monitoring result. A wider beam is selected for a worsesituation.

3. At the time of the beam monitoring and the beam selection, a timewindow is introduced for an attempt to receive a beam, for limiting beammonitoring time, for limiting beam selection time. Time windows may beseparately set for multiple beams and/or reference signal types.

4. When a beam is reported, a reporting resource and/or a reportingmanner and/or reporting content have high flexibility. A related featureis as follows: according to the beam monitoring result and/or a beamselection result and some decision criteria, different problemoccurrence positions and problem severity degrees (different problembeams, different numbers of problem beams and different beam qualityconditions) may correspond to different reporting resources (time,frequency, space, code and power resources); may correspond to differentreporting manners (multiple beams and/or a single beam, number oftransmissions, a type of beam); may correspond to different reportingcontent (a beam ID and/or a UE ID).

5. According to configuration of the first reference pilot resource setand/or the second reference pilot resource set, the following operationsmay be performed:

i. different reporting resources may be selected (time, frequency,space, code and power resource positions and sizes);

ii. different reporting manners may be selected (multiple beams and/orthe single beam, the number of transmissions, the type of beam);

iii. different reporting content may be selected (the beam ID and/or anRS ID and/or the UE ID).

6. According to information such as the RRC state, a configuration of abeam recovery mode, a duplex manner, a configuration of a controlchannel, the following operations may be performed:

i. different reporting resources may be selected (time, frequency,space, code and power resources);

ii. different reporting manners may be selected (multiple beams and/orthe single beam, the number of transmissions, the type of beam);

iii. different reporting content may be selected (the beam ID and/or theUE ID).

7. A priority is set and a beam with a high priority is reported(involving the selection of the second reference pilot resource).

8. Beam information may be reported with indication information of theRS ID being carried.

9. The priority is set and for the beam with the high priority, beamrecovery information corresponding to the content or the type of thebeam is first reported.

Methods provided by the preferred embodiments of the present disclosurehave the preceding features. The following are multiple specificembodiments in the preferred embodiments of the present disclosure, andthe technical solutions of the present application may be understood inconjunction with the multiple specific embodiments described below.

In step 101, a base station configures an uplink resource capable oftransmitting beam recovery information to a terminal.

The uplink resource configured by the base station may be some specifiedtime-frequency positions. Since the beam recovery information may betransmitted, the base station performs a detection at the correspondingposition. When a trigger condition related to a beam recovery issatisfied, the terminal may transmit the beam recovery information atthese candidate time-frequency positions.

In step 201, the terminal determines a first configuration informationset used for beam quality monitoring.

Optionally, the configuration includes information on reference signalsfor the beam quality monitoring. The terminal may determine the firstconfiguration information set according to a configuration of the basestation or some agreed rules.

In step 301, the terminal determines a second configuration informationset used for a beam selection.

Optionally, the configuration includes a configuration of referencesignals for the beam selection.

The terminal may determine the second configuration information setaccording to the configuration of the base station or some agreed rules.A number of selected beams, a constraint condition and the like may befurther included.

In step 401, the terminal determines a third configuration informationset used for reporting the beam recovery information.

The configuration is used for determining reporting content, a reportingformat, a resource of the reporting content, a transmission manner ofthe reporting content and the like.

In step 501, the terminal determines a fourth configuration informationset used for determining the beam selection and/or reporting.

Optionally, the configuration includes some criteria and parameters fordetermining whether steps for the beam selection and/or the beamreporting need to be performed.

In step 601, the terminal measures a quality of a downlink beamaccording to the first configuration information set.

Optionally, received power may be determined, or a channel losscorresponding to the beam may be determined.

In step 701, the terminal determines whether a trigger condition for thebeam selection and/or reporting is satisfied according to the fourthconfiguration information set.

Optionally, some manners are specifically described in the specificembodiments described below.

In step 801, when the trigger condition for the beam selection issatisfied, the terminal performs the beam selection according to secondconfiguration information.

After a beam selection range is determined, the beam selection may beperformed.

In step 901, when the trigger condition for the beam reporting issatisfied, the terminal reports the beam recovery information accordingto third configuration information.

Optionally, the beam recovery information includes index information ofa selected beam and/or a UE ID, which may carried in an explicitsignaling or indicated implicitly by a transmission position and/orsequence of the beam recovery information. The terminal selects aresource subset from a reserved resource set and transmits beam recoveryrequest information. The resource subset is selected according to an IDof a better beam which meets a condition and/or the UE ID of theterminal. A position of the resource subset implicitly indicates the IDof the better beam and/or the UE ID of the terminal. If the indexreporting of multiple beamss is supported, a UE may transmit beamrecovery requests on multiple resource subsets.

The base station blindly detects the beam recovery request informationtransmitted by the UE, and acquires indication information of the betterbeam and/or the UE ID according to an uplink transmission resource. Whendifferent content is reported, transmission policies of the terminal areaccordingly configured or agreed. The base station subsequently performsdifferent steps. Some specific steps are divided into several kinds.

In a case 1, beam recovery content first reported by the UE onlyincludes indication information of the selected beam.

In step 1001, in this case, when performing step 901, the terminaldetermines the uplink transmission resource (including time, frequencyand code resources) according to the ID of the selected beam, andtransmits the beam recovery request within the configured resourcesubset. The base station blindly detects the beam recovery requestinformation transmitted by the UE, and determines which beam is theselected new beam according to a receiving time, frequency or coderesource in a correct blind detection.

In step 1002, the base station transmits downlink control informationusing the new beam on an agreed position and allocates a physical uplinkshared channel (PUSCH) resource. The agreed position is optionallydefined based on reporting time of the beam recovery information. Atthis time, since which UE has a problem beam is unknown, the downlinkcontrol information may be scrambled in an agreed manner.

In step 1003, the terminal blindly detects a downlink control channel atthe agreed position. The agreed position is optionally defined based onthe reporting time of the beam recovery information. If the terminalsucceeds in detecting the downlink control channel, the terminal mayacquire the downlink control information. If multi-beam transmission issupported, the control channel may be detected in a multi-beam mode.

In step 1004, the terminal feeds the UE ID back to the base stationthrough an allocated uplink resource. After acquiring the UE ID, thebase station communicates with the UE using a control channel of the newbeam. Since a communication link is established and the control channelis recovered, a beam training may be performed subsequently to obtain abetter beam.

In a case 2(a), the beam recovery content first reported by the UE onlyincludes the UE ID, and channel reciprocity holds.

In step 1011 a, in this case, when executing step 901, the terminal mayselect (one or more) optimal uplink transmit beams according toreciprocity, and repeatedly transmit the beam recovery request multipletimes using the beams within the configured resource subset. The basestation blindly detects the beam recovery request informationtransmitted by the UE, and may learn which UE transmits the beamrecovery request by comparing the receiving time, frequency or coderesource in the correct blind detection and uplink transmissionresources configured for UEs.

In step 1012 a, the base station reciprocally obtains an optimaldownlink transmit beam according to an optimal uplink receive beam andtransmits the downlink control channel using the beam.

In step 1013 a, the terminal detects the downlink control channel usingan optimal downlink receive beam corresponding to the optimal uplinktransmit beam. A control link is established.

In a case 2(b), the beam recovery content first reported by the UE onlyincludes the UE ID, and the channel reciprocity is inaccurate.

In step 1011 b, in this case, when executing step 901, the terminalneeds to perform multiple scanning transmissions in the uplink, and mayfirst attempt to perform the scanning transmission within a beam range.In case of a failure, the range is expanded. In every transmission, theterminal repeatedly transmits the beam recovery request multiple timesby using the beam within the configured resource subset.

In step 1012 b, the base station blindly detects the beam recoveryrequest information transmitted by the UE, and may learn which UEtransmits the beam recovery request by comparing the receiving time,frequency or code resource in the correct blind detection and the uplinktransmission resources configured for UEs.

In step 1013 b, the base station transmits specific DCI in a commonPDCCH to allocate an uplink resource to the terminal which needs toperform the beam recovery as a resource for reporting the beam ID.

In step 1014 b, the base station determines a transmit beam of aspecific control channel according to the reported ID to establish thecontrol link. The control channel may be used for the subsequentcommunication with the terminal, and the beam training may be furtherperformed to obtain the better beam.

In a case 3, the beam recovery content first reported by the UE includesthe UE ID and beam indication information.

In step 1021, in this case, when executing step 901, when the triggercondition is satisfied, the terminal selects the resource subset fromthe reserved resource set to transmit the beam recovery requestinformation. The resource subset is selected according to a resource setpre-configured by the base station for the UE and an ID of the downlinkbeam selected by the UE. A transmit resource of the beam recoveryrequest information implicitly reflects which UE transmits the beamrecovery request information and information on an ID of an optimaldownlink beam measured by the UE.

In case of good reciprocity, the terminal may transmit the beam recoveryrequest information only by using an uplink beam reciprocally obtainedby the optimal downlink beam. If the reciprocity is not ideal, theterminal may perform uplink transmission of the beam recovery requestinformation by using multiple possible beams. If the beams are still notideal, the beam range continues to be expanded.

In step 1022, the base station blindly detects the beam recovery requestinformation transmitted by the UE, and may learn which UE transmits thebeam recovery request by comparing the receiving time, frequency or coderesource in the correct blind detection and the uplink transmissionresources configured for UEs.

In step 1023, the base station determines a transmit beam of aUE-specific control channel according to the reported beam ID toestablish the control link. The control channel may be used for thesubsequent communication with the terminal, and the beam training may befurther performed to obtain the better beam.

Candidate types of measurement reference signals which may be consideredfor a downlink beam recovery includes types described below.

A reference signal type 1 is a CSI RS.

A reference signal type 2 is a common-PDCCH DMRS.

A reference signal type 3 is a synchronization signal.

Optionally, the preceding types may be configured by a base station, andeach terminal may separately configure a beam recovery reference signaltype.

The same terminal may support one or more types of beam recoveryreference signals.

The base station may also configure multiple sets of resources of thesame type of pilot frequency, such as a CSI-RS resource 1 and a CSI-RSresource 2. Beam configurations, such as a width, a number of beams anda number of ports, of the two CSI-RS resources may be different. Theterminal may perform the beam recovery based on each of multiple CSI-RSresources or a combination of the multiple CSI-RS resources.

It is to be noted that the beam recovery here includes two cases: forthe beam monitoring and for the selection of the better beam.

A configuration information set used for a beam recovery includes afirst configuration information set used for beam quality monitoring.

The first configuration information set includes one or more pieces offirst configuration information. The first configuration informationincludes a configuration of reference signals that need to be monitored,and further includes configuration information of a first referencepilot resource set, such as a configuration of a reference signal type,a transmission resource indication configuration, transmit power, atransmission time-frequency resource position, transmission pre-encodinginformation, a resource numbering rule, and transmit antennas. The firstconfiguration information may include some configurations of receivingparameters.

A terminal may determine the first configuration information through anagreement or a configuration signaling of a base station. For theconfiguration signaling of the base station, the base station needs todetermine the configuration of reference signals and transmits theconfiguration of references signals to the terminal through a high-layeror physical layer signaling.

In a sub-embodiment 1, a beam to be monitored is determined based on abeam configuration of a control channel.

In an option-1 of the sub-embodiment 1, a receiving end and atransmitting end agree a certain control channel or some controlchannels, or the base station configures and specifies the certaincontrol channel or some control channels for the terminal. The terminaldetermines a beam currently used by the control channel according tobeam configuration information, and determines a measurement referencesignal corresponding to the beam.

For example, the base station configures and specifies one controlchannel to be monitored, and the beam used by the control channel isdefined based on a CSI-RS. An object measured in the beam recovery isthe CSI-RS. The terminal measures and monitors the CSI-RS.

For example, the base station configures and specifies two controlchannels to be monitored, and the beam used by one control channel isdefined based on the CSI-RS. The beam of the other control channel isdefined based on an SS. The object measured in the beam recovery is theCSI-RS and the SS. The terminal measures and monitors the CSI-RS and theSS.

Another case is that a primary control channel and a secondary controlchannel are divided when the control channels are configured. Thetransmitting end and the receiving end agree to measure and monitor areference signal corresponding to a beam currently used by the primarycontrol channel and the base station is not required to specify acontrol channel to be detected. Therefore, no additional signaling isrequired and this case belongs to a pre-agreement.

In an option-2 of the sub-embodiment 1, the terminal determines allcontrol channels according to a configuration related to the controlchannels and a beam set that may be used by all the control channels.Beams included in the beam set may correspond to X types/sets ofmeasurement reference signals, and X types/sets of reference signals aremeasured.

For example, the base station configures multiple control channels forthe terminal. A transmit beam of some control channels is defined basedon a CSI-RS resource 1, and a beam of some control channels is definedbased on a CSI-RS resource 2. A reference object of the beam recovery isthe CSI-RS resource 1 and/or the CSI-RS resource 2.

For example, the base station configures multiple control channels. Thetransmit beam of some control channels is defined based on the CSI-RSresource 1, and the beam of some control channels is defined based onthe SS. The reference object of the beam recovery is the CSI-RS resource1 and/or the SS.

In a sub-embodiment 2, the base station configures and indicates ameasurement reference signal related to the beam recovery.

A difference from the sub-embodiment 1 is that the sub-embodiment 2 hasno strong relationship with the control channel. The base stationdirectly configures and specifies a type, a number, and a resource ID ofthe measurement reference signal related to the beam recovery.

A specific manner may be that the base station specifies a beam or abeam set to be monitored of the control channel from all candidate beamsof the control channel. The beam set may include multiple beams of thecontrol channel. The terminal determines the reference signal to bemeasured and the beam to be monitored according to the beam set. In amore complex case, the beam set may include multiple types of beamsdefined based on different types of reference signals. For simplicity, anumber and a type of beams included in the beam set may be defined. Theterminal determines reference signals corresponding to the beamsincluded in the beam set.

It is to be noted that multiple beams to be monitored may be supported,and the multiple beams may be the same type of reference signal ordifferent types of reference signals.

The configuration information set used for the beam recovery includes asecond configuration information set used for a beam selection. Secondconfiguration information in the second configuration information setmainly includes a configuration of reference signals used for the beamselection, and further includes configuration information of a secondreference pilot resource set, such as the transmission resourceindication configuration, the transmit power, the transmissiontime-frequency resource position, the transmission pre-encodinginformation, the resource numbering rule, and the transmit antennas. Thesecond configuration information may also be some configurations ofreceiving parameters. The terminal determines the configuration throughthe agreement and the configure signaling of the base station. For theconfiguration signaling of the base station, the base station needs todetermine the configuration of reference signals and transmits theconfiguration of references signals to the terminal through thehigh-layer or physical layer signaling.

It is to be noted that multiple reference signal sets used for the beamselection may be supported, and multiple optional beams may also beselected from one reference signal set. The multiple beams may be thesame type of reference signal or different types of reference signals.

The configuration information set used for the beam recovery includes athird configuration information set used for reporting beam recoveryinformation.

Optionally, the beam recovery information includes beam indicationinformation and/or receiving end indication information. Otherinformation related to the beam recovery is not excluded. The thirdconfiguration information set includes a transmission mode indication, atransmission resource indication, a reporting content indication, areporting criterion, and the like of the beam recovery information, suchas a number of reported beams and a priority principle.

The configuration information set used for the beam recovery includes afourth configuration information set used for determining the beamselection and/or reporting.

Optionally, the fourth configuration information set used fordetermining the beam selection and/or reporting includes a beam qualitythreshold. For example, when a beam is monitored, whether the beam islower than a configured first threshold within a period of time needs tobe determined. When a beam is selected, it is determined whether theselected beam is higher than a configured second threshold. If multiplebeams are monitored, separate configurations may be required. There arealso some criteria for determining whether to select one beam ormultiple beams.

Optionally, the first reference pilot resource set is a subset of M1sets of reference pilot resources, and the second reference pilotresource set is a subset of N1 sets of reference pilot resources, whereM1 is less than or equal to N1, and M1 and N1 are both positiveintegers. Optionally, the M1 sets of reference pilot resources are asubset of the N1 sets of reference pilot resources.

Optionally, the first reference pilot resource set includes M2 types ofreference pilot resources, and the second reference pilot resource setincludes N2 types of reference pilot resources, where M2 is less than orequal to N2, and M2 and N2 are both positive integers. Optionally, theM2 types of reference pilot resources are a subset of the N2 types ofreference pilot resources.

Optionally, candidate resource types of the first reference pilotresource set constitute a type set X1, and candidate resource types ofthe second reference pilot resource set constitute a type set X2, whereX1 is a subset of X2.

Optionally, a type of a reference pilot resource includes one or more ofa CSI-RS, a PDCCH DMRS or a synchronization signal.

Optionally, the transmitting end separately configures the firstreference pilot resource set/a subset of the first reference pilotresource set for different RRC state sets.

Optionally, the transmitting end separately configures the secondreference pilot resource set/a subset of the second reference pilotresource set for different RRC state sets.

Here, an RRC state commonly includes a connected state and an idlestate. A newly defined state may also be included. The RRC states may bedivided into multiple sets. The first reference pilot resource set/thesubset of the first reference pilot resource set may be separatelyconfigured for each set of RRC states. The second reference pilotresource set/the subset of the second reference pilot resource set maybe separately configured for each set.

The receiving may separately determine the first reference pilotresource set/the subset of the first reference pilot resource set fordifferent RRC state sets. The receiving end may determine the firstreference pilot resource set/the subset of the first reference pilotresource set through the configuration signaling of the base station inconjunction with a current RRC state. The receiving end may alsodetermine the first reference pilot resource set/the subset of the firstreference pilot resource set through an agreed rule/parameter inconjunction with the current RRC state.

The receiving may separately determine the second reference pilotresource set/the subset of the second reference pilot resource set fordifferent RRC state sets. The receiving end may determine the secondreference pilot resource set/the subset of the second reference pilotresource set through the configuration signaling of the base station inconjunction with the current RRC state. The receiving end may alsodetermine the second reference pilot resource set/the subset of thesecond reference pilot resource set through the agreed rule/parameter inconjunction with the current RRC state.

Optionally, the transmitting end separately configures the firstreference pilot resource set/the subset of the first reference pilotresource set for different beam recovery modes.

Optionally, the transmitting end separately configures the secondreference pilot resource set/the subset of the second reference pilotresource set for different beam recovery modes.

Here, multiple beam recovery modes may be defined. For example, severalprocesses in a specific embodiment 3 may be defined as different beamrecovery beams. A newly defined beam recovery mode may be furtherincluded. The beam recovery modes may be divided into multiple sets Thefirst reference pilot resource set/the subset of the first referencepilot resource set may be separately configured for each set of beamrecovery modes. The second reference pilot resource set/the subset ofthe second reference pilot resource set may be separately configured foreach set.

The receiving may separately determine the first reference pilotresource set/the subset of the first reference pilot resource set fordifferent beam recovery modes. The receiving end may determine the firstreference pilot resource set/the subset of the first reference pilotresource set through the configuration signaling of the base station inconjunction with a current beam recovery mode. The receiving end mayalso determine the first reference pilot resource set/the subset of thefirst reference pilot resource set through the agreed rule/parameter inconjunction with the current beam recovery mode.

The receiving may separately determine the second reference pilotresource set/the subset of the second reference pilot resource set fordifferent beam recovery modes. The receiving end may determine thesecond reference pilot resource set/the subset of the second referencepilot resource set through the configuration signaling of the basestation in conjunction with the current beam recovery mode. Thereceiving end may also determine the second reference pilot resourceset/the subset of the second reference pilot resource set through theagreed rule/parameter in conjunction with the current beam recoverymode. Optionally, the transmitting end separately configures the firstreference pilot resource set/the subset of the first reference pilotresource set for different control channels.

Optionally, the transmitting end separately configures the secondreference pilot resource set/the subset of the second reference pilotresource set for different control channels.

Here, the base station may configure multiple control channels, whosetransmission manners may differ from each other. After the controlchannels are divided into sets, the first reference pilot resourceset/the subset of the first reference pilot resource set may beseparately configured for each set of control channels. The secondreference pilot resource set/the subset of the second reference pilotresource set may be separately configured for each set of controlchannels.

The receiving may separately determine the first reference pilotresource set/the subset of the first reference pilot resource set fordifferent control channels. The receiving end may determine the firstreference pilot resource set/the subset of the first reference pilotresource set through the configuration signaling of the base station inconjunction with a currently used control channel. The receiving end mayalso determine the first reference pilot resource set/the subset of thefirst reference pilot resource set through the agreed rule/parameter inconjunction with the currently used control channel.

The receiving may separately determine the second reference pilotresource set/the subset of the second reference pilot resource set fordifferent control channels. The receiving end may determine the secondreference pilot resource set/the subset of the second reference pilotresource set through the configuration signaling of the base station inconjunction with the current control channel. The receiving end may alsodetermine the second reference pilot resource set/the subset of thesecond reference pilot resource set through the agreed rule/parameter inconjunction with the current control channel.

Fourth configuration information includes configuration information of afirst set of preset conditions used for the beam selection and/orreporting. A preset condition in the first set of preset conditions actson a step and/or a result of the beam quality monitoring.

A type of the preset condition of the first set of preset conditions isa quality threshold. The quality threshold is used for determiningwhether a monitored beam quality coincides with a condition defined bythe quality threshold.

A type of the preset condition of the first set of preset conditions isa time window T1. The time window T1 is used for defining a beammeasurement time range. For example, how many times the beam quality islower than the quality threshold within the time window. Alternatively,it is determined whether an average quality within the time window islower than the quality threshold. Alternatively, it is determinedwhether a lowest quality within the time window is lower than thequality threshold. There may be many criteria, but the time window needsto be defined here. The time window T1 may be configured by thetransmitting end for the receiving end, or agreed by the transmittingend and the receiving end.

The fourth configuration information includes configuration informationof a second set of preset conditions used for the beam selection and/orreporting. A preset condition in the first set of preset conditions actson a step and/or a result of the beam selection and/or reporting.

A type of the preset condition of the second set of preset conditions isthe quality threshold. The quality threshold is used for determiningwhether a quality of a selection beam coincides with the conditiondefined by the quality threshold. Only the condition is met, can thereporting be performed.

Multiple quality thresholds may be set to separately correspond tomultiple selected beams.

A type of the preset condition of the first set of preset conditions isa time window. The time window is used for defining a beam selectionmeasurement time range. There may be many criteria, but the time windowneeds to be defined here. The time window may be configured by thetransmitting end for the receiving end, or agreed by the transmittingend and the receiving end.

The first set of preset conditions is configured in one or more ofmanners described below.

The transmitting end separately configures the first set of presetconditions/a first subset of preset conditions for different firstreference pilot resource sets/subsets of the first reference pilotresource set used for the beam quality monitoring.

The transmitting end separately configures the first set of presetconditions/the first subset of preset conditions for different RRC statesets.

The transmitting end separately configures the first set of presetconditions/the first subset of preset conditions for different beamreporting manners.

The transmitting end separately configures the first set of presetconditions/the first subset of preset conditions for different beamrecovery modes.

The second set of preset conditions is configured in one or more ofmanners described below.

The transmitting end separately configures the second set of presetconditions/a second subset of preset conditions for different secondreference pilot resource sets/subsets of the second reference pilotresource set used for the beam selection.

The transmitting end separately configures the second set of presetconditions/the second subset of preset conditions for different RRCstate sets.

The transmitting end separately configures the second set of presetconditions/the second subset of preset conditions for different beamreporting manners.

The transmitting end separately configures the second set of presetconditions/the second subset of preset conditions for different beamrecovery modes.

The transmitting end configures multiple control channels, andseparately configures the first set of preset conditions and/or thefirst subset of preset conditions and/or the second set of presetconditions and/or the second subset of preset conditions for differentcontrol channels.

The third configuration information set includes a transmission resourceconfiguration information set used for the beam reporting.

A resource includes one or more of: an uplink transmission antennaresource; an uplink transmission beam resource; an uplink time domainresource; an uplink frequency domain resource; an uplink code domainresource; or an uplink power resource.

Third configuration information includes a transmission resourceconfiguration information set used for the beam reporting, such as asingle beam for transmission or multiple beams for transmission.

The third configuration information includes a content configurationinformation set used for the beam reporting, such as whether a selectedbeam or multiple selected beams are reported, whether a UE ID or a beamID is reported, or whether both the UE ID and the beam ID are reported.When multiple different beams are selected, which one beam ispreferentially reported.

The third configuration information set is configured in one or more ofmanners described below.

The transmitting end separately configures the third configurationinformation set/a subset of the third configuration information set fordifferent first reference pilot resource sets/subsets of the firstreference pilot resource set used for the beam selection.

The transmitting end separately configures the third configurationinformation set/a subset of the third configuration information set fordifferent first reference pilot resource sets/subsets of the firstreference pilot resource set used for the beam selection.

The transmitting end separately configures the third configurationinformation set/the subset of the third configuration information setfor different first sets of preset conditions/first subsets of presetconditions.

The transmitting end separately configures the third configurationinformation set/the subset of the third configuration information setfor different second sets of preset conditions/second subsets of presetconditions.

The transmitting end separately configures the third configurationinformation set/the subset of the third configuration information setfor different RRC state sets.

The transmitting end separately configures the third configurationinformation set/the subset of the third configuration information setfor different beam recovery modes.

The transmitting end separately configures the third configurationinformation set/the subset of the third configuration information setfor different control channels.

If the UE transmits a beam recovery request in a scanning manner, thebase station may detect the beam recovery request on multiple uplinkresources. In this case, whether the beam recovery request istransmitted by the same UE should be determined according to whether asequence is the same. The same sequence is used for transmissions ofmultiple uplink transmit beams.

In the preceding specific embodiment, it is not indicated whether themeasurement of the beam quality is based on a beam pair link (BPL) or atransmit (Tx) beam. Both a change of the transmit beam and a change of areceive beam can lead to a decreased BPL quality, but differentconsiderations exist in the beam recovery. If the quality threshold canbe reached only through the change of the transmit beam, the beamrecovery needs to be initiated. If the quality threshold can be reachedthrough the change of the receive beam rather than the change of thetransmit beam, no beam recovery needs to be initiated. A specificconsideration is described below.

In step 1, the base station configures a time window T2 for theterminal.

The base station may configure multiple time windows T2 for differentcontrol channels/control beams/reference signals. T2 and T1 may be thesame or different.

In step 2, when the terminal finds that a current BPL does not meet aquality requirement, the terminal needs to try finding a receive beamwhich enables the BPL quality to be higher than a correspondingthreshold within the time window without changing the transmit beam.

In step 3, if the receive beam that meets the condition is found in step2, no beam recovery request is transmitted; if a good receive beamcannot be found in step 2 (a possible cause is a limit of a transmissiondensity configuration of the reference signal) to enable the BPL qualityto be higher than the threshold, the beam recovery is initiated. At thistime, two cases are included.

In a case A, the terminal can find other BPLs that meet the conditionwithin the time window (the transmit beam changes), and the terminalreports information of the corresponding transmit beam. If the controlchannel originally has multiple BPLs, all of which meet a beam recoverycondition, two options exist.

-   -   Transmit beams are reported totally independently.    -   Priorities are set and a transmit beam of a high priority is        reported.

In a case B, the terminal cannot find other BPLs that meet the conditionbased on a set R of reference signal resources corresponding to the BPLwithin the time window, but can find other BPLs that meet the conditionin another set r of reference signal resources. In this case, severalcases may exist.

-   -   A new beam recovery mechanism when the beam meets the condition        cannot be found using R, and this case is reported.    -   The base station is notified that a certain beam in the set r of        reference signal resources is available, and the set r of        reference signal resources is indicated in a feedback.

In a case C, within the time window, other BPLs that meet the conditioncannot be found based on all beam recovery measurement referencesignals. At this time, several solutions are proposed.

-   -   A random access process is directly performed.    -   The new beam recovery mechanism when the beam meets the        condition cannot be found using R, and this case is reported.

The receiving end may determine the second reference signal resource setaccording to a beam monitoring result.

For example, multiple thresholds are set for beam monitoring tocorrespond to severity degrees of different quality problems anddifferent severity degrees. The multiple thresholds correspond todifferent second reference signal resources. Some second sets ofreference signal resources correspond to more beams, and some secondsets of reference signal resources correspond to fewer beams.

For example, the beam monitoring is performed on multiple beams, andpositions and/or the number of problem beams may separately correspondto the severity degrees of different quality problems. Differentseverity degrees correspond to different second reference signalresources. Some second sets of reference signal resources correspond tomore beams, and some second sets of reference signal resourcescorrespond to fewer beams.

For example, the beam monitoring is performed on multiple beams thatcorrespond to different reference signal types. The different referencesignal types may correspond to different reference signals separately.The different reference signal types also correspond to different secondreference signal resources. Some second sets of reference signalresources correspond to more beams, and some second sets of referencesignal resources correspond to fewer beams.

The second reference signal resource set corresponding to multiplethresholds, multiple beams, and different reference signal types may beagreed or configured.

The time window T1 or T2 described above may be configured in mannersdescribed below.

The transmitting end separately configures T1 or T2 for different firstreference pilot resource sets/subsets of the first reference pilotresource set used for the beam selection.

The transmitting end separately configures T1 or T2 for different secondreference pilot resource sets/subsets of the second reference pilotresource set used for the beam selection.

The transmitting end separately configures T1 or T2 for different firstsets of preset conditions/first subsets of preset conditions.

The transmitting end separately configures T1 or T2 for different secondsets of preset conditions/second subsets of preset conditions.

The transmitting end separately configures T1 or T2 for different RRCstate sets.

The transmitting end separately configures T1 or T2 for different beamrecovery modes.

The transmitting end separately configures T1 or T2 for differentcontrol channels.

The receiving end may determine a reporting resource/reportingmanner/reporting content of the beam recovery information according tothe beam monitoring result.

For example, multiple thresholds are set for the beam monitoring tocorrespond to severity degrees of different quality problems anddifferent severity degrees. The multiple thresholds correspond todifferent reporting resources/reporting manners/reporting content.

For example, the beam monitoring is performed on multiple beams, and thepositions and/or the number of problem beams may separately correspondto the severity degrees of different quality problems. Differentseverity degrees correspond to different reporting resources/reportingmanners/reporting content.

For example, the beam monitoring is performed on multiple beams thatcorrespond to different reference signal types. The different referencesignal types correspond to different reporting resources/reportingmanners/reporting content.

It may be agreed or configured that multiple thresholds, multiple beams,and different reference signal types correspond to different reportingresources/reporting manners/reporting content.

The reporting resource optionally includes one or a combination of time,frequency, space, code and power resources.

The reporting manner optionally includes multiple beams/a single beam,the number of transmissions, what beams are used, and a transmissiontechnique.

The reporting content optionally includes the beam ID and/or the UEID,one beam ID or multiple beam IDs.

The receiving end may determine the reporting resource/reportingmanner/reporting content of the beam recovery information according to abeam selection result.

For example, in the case of a joint selection, different referencesignal sets where an optional beam is selected may correspond todifferent reporting resources/reporting manners/reporting content. Inthe case of an independent selection, optional beams in differentreference signal sets may correspond to different reportingresources/reporting manners/reporting content.

The receiving end may determine the reporting resource/reportingmanner/reporting content of the beam recovery information according tothe beam selection result.

For example, different reference signal sets where the optional beam isselected may correspond to different reporting resources/reportingmanners/reporting content.

According to the RRC state, the configuration of the beam recovery mode,a duplex manner, and the configuration of the control channel, differentreporting resources, different reporting manners, and differentreporting content may be selected.

These differentiated designs may make the beam recovery more targeted.

The number of resources in the second reference pilot resource set maybe used for determining a size and a position of an area of thereporting resource.

The reporting resource/reporting manner/reporting content may bedetermined according to a type of the second reference pilot resourceset.

Pilot resources included in the second reference pilot resource set maybe determined according to the size and position of the area of theavailable reporting resource.

The receiving end and the transmitting end agree or configure a priorityorder for reporting selected beams, and the receiving end reports theselected beams according to the priority order.

The reporting content of a high priority is first reported, and thereporting content of a low priority is not reported or delayed.

The reporting content of the high priority is reported in a more robustmanner, and the reporting content of the low priority is reported in ageneral manner.

The reporting content of the high priority occupies more reportingresources, and the reporting content of the low priority occupies fewerreporting resources.

Four beam recovery processes are mentioned in the preceding embodiment.In a process 1, UE information does not need to be reported when the UEperforms reporting for the first time. The UE information is carried infirst steps in processes 2 a, 2 b and 3.

The reporting of the UE information in the processes 2 a, 2 b and 3 maybe considered together with a design of a scheduling request (SR) in theuplink transmission. Since the base station needs to know the UEinformation when SR information is acquired, one bit may be added to theSR.

Multiple transmission modes may be selected for the SR, for example:

(1) The SR is transmitted using a trained uplink transmit beam, and isreceived by the base station using a trained beam.

(2) The SR is transmitted using multiple trained transmit beams, and isreceived by the base station using trained beams corresponding to thetransmit beams.

(3) The SR is repeatedly transmitted using the trained transmit beam formultiple times, and the base station performs receive beam scanning.

(4) The SR is repeatedly transmitted using each of multiple trainedtransmit beams for multiple times, and the base station performs thereceive beam scanning for each of the multiple transmit beams to receivethe SR.

(5) The terminal determines a transmit beam to repeatedly transmit theSR for multiple times with the same beam and the base station performsthe receive beam scanning to receive the SR. The terminal may switchbeams by itself (within an agreed range/or without limitations).

In the case 5, the SR is transmitted with the beam recovery information.It is to be noted that the SR may also be transmitted in a scanningmanner.

In the preceding three processes described above, the beam ID needs tobe carried when the UE performs reporting for the first time in theprocess 1. The reporting of the beam ID may be referred to a design of aphysical random access channel (PRACH). However, it is noted that thereference signal for the beam recovery may not be the SS and may be theCSI-RS. The number of beams of the CSI-RS may be different from that ofthe SS. A capability of an RRC/MAC layer to configure a signaling cannotbe used in a PRACH stage, while the capability of the RRC/MAC layer toconfigure the signaling may be used during the beam recovery. Therefore,an uplink resource configuration here is also different. The beamrecovery is generally faster than the SS and thus has a higher timedomain density requirement.

As described in the preceding specific embodiments, the beam recoverymay be performed by measuring the SS, the CSI-RS, and a common physicaldownlink control channel (PDCCH). Different measurement referencesignals may correspond to different/independent configurations whichinclude:

-   -   a transmission area configuration: for example, different        frequency domain resources and different time domain densities        (which may be related to an RS configuration);    -   a transmission manner configuration: different sequences in use        and different transmission mode (which may be related to the RS        configuration);    -   carried content: more content carried in some reference signals        and less content carried in some reference signals;    -   different beam recovery processes which separately correspond to        different RSs;    -   different reporting manners. Different recovery processes        separately correspond to different RSs.

As described above, if the BPLs that meet the condition cannot be found,the RACH process is performed directly, or uplink transmit beam scanningis performed without carrying the beam ID. Only the UE ID is carried anda reporting design and a resource configuration may be specifically madefor this case. The case where the beam ID is not carried should bedistinguished from the process 2 a descried in the preceding embodiment.

When a downlink beam is indicated, the downlink beam may be specifiedusing different beams corresponding to different DCI formats.

For example, a DCI Format A corresponds to a beam of the SS; a DCIFormat B corresponds to a beam of the CSI-RS; and a DCI Format Ccorresponds to a beam defined by the PDCCH DMRS.

When no beam recovery is performed, a DCI Format specific detectionperiod may be configured.

When the beam recovery is performed, if the beam recovery is initiatedbased on a certain type of reference signal, the corresponding DCIformat is continuously detected within an agreed time range afterreporting.

Different degrees of beam quality problems correspond to different RSresource subsets. For a more serious case, the subset should includemore beam resources or use a wider beam. However, if the beam quality isnot very poor, or only a decrease speed exceeds a preset threshold andthe practical quality has not deteriorated very much, it may mean thatthe optimal beam may still be located in the vicinity of the originalbeam, and thus the subset may include fewer pilot resource to reducebeam quantization information overheads. Similarly, different types ofbeams (CSI-RS beam and/or SS beam) which have problems may alsocorrespond to different RS resource subsets. The reference Signal issimply referred to as RS. The synchronization signal is simply referredto as SS.

The base station may configure the quality threshold and the time windowused for the beam monitoring. Within the time window, if the terminalfinds that the beam quality cannot be higher than the quality threshold,or the beam quality decrease very fast, the beam selection and reportingneed to be triggered. Within the time window, if the monitored beam canbe transmitted multiple times, the terminal may try changing the receivebeam to obtain a better receiving quality. The base station mayseparately configure the quality thresholds and the time windowscorresponding to different beams because different beams may havedifferent widths and time domain configurations for transmitting thecorresponding reference signals may also be different. The base stationmay also configure different quality thresholds for the same beam.Different quality thresholds represent different severity degrees of thebeam problem.

The time windows of the beam selection corresponding to different beamseverity degrees may also be different. The time window is generallylonger for a more serious beam problem so that more opportunities areprovided to measure more BPLs.

Different beam quality problems may also correspond to different beamreporting modes. For example, a first mod may be adopted for a severebeam quality problem, and a third mode may be adopted for a general beamquality problem, that is, different beam reporting modes may be adoptedfor the two beam quality problems. It is to be noted that the beamreporting mode is a reporting mode of the beam recovery information.

The reference signal resource set used for the beam selection mayinclude multiple types of reference signals, such as the SS beam and theCSI-RS beam. The terminal may perform the beam selection within the set.The optimal beam likely to be selected is the CSI-RS beam or the SSbeam.

If the base station cannot determine a type of RS reported by the UE,the terminal needs to indicate the type of the RS when reporting thetype of RS.

The above are optional embodiments of the present disclosure, and thepresent disclosure is not limited to the embodiments described above inspecific implementations. Any two or more embodiments may be combined ifnot in conflict.

Compared with the existing art, the above-mentioned technical solutionshave the following features:

1. A new beam recovery mechanism is provided. Compared with the beamrecovery by means of a random access, this method can quickly find andrecover a beam when the beam has a problem and has a little impact onuser experience.

2. The beam set used for the beam recovery has more flexible beamconfigurations.

3. Compared with the existing art, the beam recovery process requiresfewer feedback overheads and wastes fewer resources.

4. Compared with the existing art, the present disclosure can moreaccurately find a beam problem.

5. Compared with the beam recovery by means of the random access, thepresent disclosure has better performance because measurement andreporting can be performed based on a beam defined by the CSI-RS.

From the description of the embodiments described above, it will beapparent to those skilled in the art that the methods in the embodimentsdescribed above may be implemented by software plus a necessarygeneral-purpose hardware platform, or may of course be implemented byhardware. However, in many cases, the former is a preferredimplementation mode. Based on this understanding, the technicalsolutions of the present disclosure substantially, or the partcontributing to the existing art, may be embodied in the form of asoftware product. The computer software product is stored in a storagemedium (such as a read-only memory (ROM)/random access memory (RAM), amagnetic disk or an optical disk) and includes several instructions forenabling a terminal device (which may be a mobile phone, a computer, aserver, a network device or the like) to execute the methods accordingto the embodiments of the present disclosure.

Another embodiment of the present disclosure further provides a basestation 30. FIG. 3 is a structural diagram of hardware of a base station30 according to an embodiment of the present disclosure. As shown inFIG. 3 , the base station 30 includes a first processor 302 and a firstcommunication apparatus 304. The first processor 302 is configured todetermine a configuration information set for instructing a terminal toperform a beam recovery. The configuration information set includes atleast one of: a first configuration information set, a secondconfiguration information set, a third configuration information set ora fourth configuration information set. The first configurationinformation set is used for instructing the terminal to perform beamquality monitoring according to the first configuration information set.The second configuration information set is used for instructing theterminal to perform a beam selection according to the secondconfiguration information set. The third configuration information setis used for instructing the terminal to report beam recovery informationto the base station 30 according to the third configuration informationset, where the beam recovery information includes beam indicationinformation and/or terminal indication information. The fourthconfiguration information set is used for instructing the terminal todetermine the beam selection and/or determine whether to report the beamrecovery information according to the fourth configuration informationset.

The first communication apparatus 304 is configured to transmit theconfiguration information set to the terminal. The first communicationapparatus 304 may correspond to a transceiving antenna or the like.

Optionally, the first configuration information set includesconfiguration information of a first reference pilot resource set usedfor the beam quality monitoring.

Optionally, the second configuration information set includesconfiguration information of a second reference pilot resource set usedfor the beam selection.

It is to be added that the base station 30 may perform any step of themethod of the transmitting end in the embodiment 1.

Another embodiment of the present disclosure further provides a terminal40. FIG. 4 is a structural diagram of hardware of a terminal 40according to an embodiment of the present disclosure. As shown in FIG. 3, the terminal 40 includes a second communication apparatus 404 and asecond processor 402.

The second communication apparatus 404 is configured to receive aconfiguration information set for instructing the terminal 40 to performa beam recovery and transmitted by a base station.

The second processor 402 is configured to perform, according to theconfiguration information set, at least one of operations describedbelow. The second processor 402 determines first configurationinformation used for beam quality monitoring according to theconfiguration information set, and the terminal 40 performs the beamquality monitoring according to the first configuration information. Thesecond processor 402 determines fourth configuration information usedfor determining a beam selection and/or determining whether to reportbeam recovery information according to the configuration informationset, and the terminal 40 determines the beam selection and/or determinewhether to report the beam recovery information according to the fourthconfiguration information.

Optionally, the second processor 402 is further configured to determinesecond configuration information used for the beam selection accordingto the configuration information set. When a new beam needs to beselected, the terminal 40 performs the beam selection according to thesecond configuration information.

Optionally, the second processor 402 is further configured to determinethird configuration information used for reporting the beam recoveryinformation according to the configuration information set. When thebeam recovery information needs to be reported, the terminal 40 reportsthe beam recovery information according to the third configurationinformation.

It is to be added that the terminal 40 may perform any step of themethod of the receiving end in the embodiment 1.

An embodiment of the present disclosure further provides a communicationsystem including a base station and a terminal.

The base station determines a configuration information set forinstructing the terminal to perform a beam recovery. The configurationinformation set includes at least one of: a first configurationinformation set, a second configuration information set, a thirdconfiguration information set or a fourth configuration information set.The first configuration information set is used for instructing theterminal to perform beam quality monitoring according to the firstconfiguration information set. The second configuration information setis used for instructing the terminal to perform a beam selectionaccording to the second configuration information set. The thirdconfiguration information set is used for instructing the terminal toreport beam recovery information to the base station according to thethird configuration information set, where the beam recovery informationincludes beam indication information and/or terminal indicationinformation. The fourth configuration information set is used forinstructing the terminal to determine the beam selection and/ordetermine whether to report the beam recovery information according tothe fourth configuration information set.

The base station transmits the configuration information set to theterminal.

An embodiment of the present disclosure provides a storage medium. Thestorage medium includes stored programs which, when executed, performsteps of the method according to any one of the embodiments describedabove, for example, the method shown in FIG. 2 . Optionally, the storagemedium may be a non-transitory storage medium.

An embodiment of the present disclosure provides a processor. Theprocessor is configured to execute programs, which, when executed,perform the steps of the method according to any one of the embodimentsdescribed above.

An embodiment of the present disclosure further provides a communicationdevice including a memory and a processor. The memory is configured tostore computer-executable instructions.

The processor is connected to the memory and configured to execute thecomputer-executable instructions to implement the any one of beamrecovery processing methods described above, for example, one or more ofthe beam recovery processing methods performed by a transmitting end orone or more of the beam recovery methods performed by a receiving end.

Apparently, it should be understood by those skilled in the art thateach of the above-mentioned modules or steps of the present disclosuremay be implemented by a general-purpose computing apparatus, the modulesor steps may be concentrated on a single computing apparatus ordistributed on a network composed of multiple computing apparatuses, andalternatively, the modules or steps may be implemented by program codesexecutable by the computing apparatus, so that the modules or steps maybe stored in a storage apparatus and executed by the computingapparatus. In some circumstances, the illustrated or described steps maybe executed in sequences different from those described herein, or themodules or steps may be made into various integrated circuit modulesseparately, or multiple modules or steps therein may be made into asingle integrated circuit module for implementation. In this way, thepresent disclosure is not limited to any specific combination ofhardware and software.

The above are only preferred embodiments of the present disclosure andare not intended to limit the present disclosure, and for those skilledin the art, the present disclosure may have various modifications andvariations. Any modifications, equivalent substitutions, improvementsand the like made within the spirit and principle of the presentdisclosure fall within the scope of the present disclosure.

INDUSTRIAL APPLICABILITY

In the technical solutions of the present disclosure, the transmittingend instructs the receiving end to perform the beam recovery accordingto the configuration information set so that the receiving end mayperform the beam recovery according to configuration information byitself when a quality of a serving beam decreases, thereby avoiding theproblem of a communication quality decline due to an inability torecover the beam or quickly recover the beam after the quality of theserving beam decreases, achieving quick beam switching, providingpositive beneficial effects. Meanwhile, the technical solutions areconvenient to implement and can be widely implemented in the industry.

What is claimed is:
 1. A beam recovery processing method, comprising:determining, by a transmitting end, a configuration information set forinstructing a receiving end to perform a beam recovery; wherein theconfiguration information set comprises: a second configurationinformation set, used for instructing the receiving end to perform abeam selection according to the second configuration information set;and transmitting, by the transmitting end, the configuration informationset to the receiving end; wherein the second configuration informationset comprises: configuration information of a second reference pilotresource set used for the beam selection; wherein the determining, bythe transmitting end, the configuration information set for instructingthe receiving end to perform the beam recovery comprises: configuring,by the transmitting end, at least one of the following information forthe receiving end separately for different radio resource control (RRC)state sets: the second reference pilot resource set or a subset of thesecond reference pilot resource set; or configuring, by the transmittingend, a plurality of control channels, and configuring at least one ofthe following information separately for different control channels: thesecond reference pilot resource set or a subset of the second referencepilot resource set.
 2. The method of claim 1, wherein a type of areference pilot resource comprises at least one of: a channel stateinformation reference signal (CSI-RS); a physical downlink controlchannel (PDCCH) demodulation reference signal (DMRS); or asynchronization signal.
 3. A beam recovery method, comprising:receiving, by a receiving end, a configuration information set forinstructing the receiving end to perform a beam recovery and transmittedby a transmitting end; performing, by the receiving end, the followingoperations according to the configuration information set: the receivingend determines first configuration information used for beam qualitymonitoring according to the configuration information set, and performsthe beam quality monitoring according to the first configurationinformation; determining, by the receiving end, second configurationinformation used for the beam selection according to the configurationinformation set; and when a new beam needs to be selected, performing,by the receiving end, the beam selection according to the secondconfiguration information; wherein the second configuration informationcomprises configuration information of a second reference pilot resourceset for the beam selection; wherein the receiving end determines theconfiguration information of the second reference pilot resource setaccording to at least one of: a configuration signaling of thetransmitting end; an RRC state; a configuration of a reporting mannerfor the beam recovery information; a beam recovery mode; a configurationof a first reference pilot resource set; a transmission configuration ofa control channel, a measurement result of the beam quality monitoring;or a configuration of a first set of preset conditions.
 4. The method ofclaim 3, wherein the receiving end determines content of the beamrecovery information according to at least one of: a configurationsignaling of the transmitting end; a radio resource control (RRC) state;a configuration of a reporting manner for the beam recovery information;a beam recovery mode; a configuration of a second reference pilotresource set; a configuration of a first reference pilot resource set; atransmission configuration of a control channel; a measurement result ofbeam monitoring; a quality of a selected beam; a system duplex manner;or a configuration of an uplink control channel.
 5. The method of claim3, wherein the first configuration information comprises configurationinformation of a first reference pilot resource set used for the beamquality monitoring.
 6. The method of claim 5, wherein the receiving enddetermines the configuration information of the first reference pilotresource set according to at least one of: a configuration signaling ofthe transmitting end; an RRC state; a configuration of a reportingmanner for the beam recovery information; a beam recovery mode; aconfiguration of a second reference pilot resource set; or atransmission configuration of a control channel.
 7. The method of claim3, wherein the receiving end determines the second reference signalresource set according to a beam quality monitoring result.
 8. Acommunication system, comprising: a base station and a terminal; whereinthe base station determines a configuration information set forinstructing the terminal to perform a beam recovery; wherein theconfiguration information set comprises: a second configurationinformation set, used for instructing the terminal to perform a beamselection according to the second configuration information set; and thebase station transmits the configuration information set to theterminal; wherein the second configuration information set comprises:configuration information of a second reference pilot resource set usedfor the beam selection; wherein the base station determines theconfiguration information set for instructing the terminal to performthe beam recovery comprises: the base station configures at least one ofthe following information for the terminal separately for differentradio resource control (RRC) state sets: the second reference pilotresource set or a subset of the second reference pilot resource set; orthe base station configures a plurality of control channels, andconfigures at least one of the following information separately fordifferent control channels: the second reference pilot resource set or asubset of the second reference pilot resource set.
 9. A non-transitorystorage medium, which is configured to store computer-executableinstructions which, when executed, implement the beam recoveryprocessing method of claim
 1. 10. A non-transitory storage medium, whichis configured to store computer-executable instructions which, whenexecuted, implement the beam recovery method of claim
 3. 11. Acommunication device, comprising: a memory, configured to storecomputer-executable instructions; and a processor, connected to thememory and configured to execute the computer-executable instructions toimplement the beam recovery processing method of claim
 1. 12. Acommunication device, comprising: a memory, configured to storecomputer-executable instructions; and a processor, connected to thememory and configured to execute the computer-executable instructions toimplement the beam recovery method of claim 3.